MessageFormat class

What the body's bytes are, which the off-chain header states and a verifier may enforce.

The numbers here are this proto's own, not the standard's: the standard writes restricted ASCII as format byte 0 and UTF-8 as 1, and the header byte comes from a mapping rather than from this value. UTF-8 sits at 0 so that an input naming no format keeps signing the bytes it signed before this field existed.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

name → String

This enum's name, as specified in the .proto file.

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value → int

This enum's integer value, as specified in the .proto file.

final, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

Returns this enum's name or the value if names are not represented.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

valueOf(int value) → MessageFormat?

Constants

MessageFormat_restricted_ascii → const MessageFormat

Restricted ASCII (header byte 0): every byte printable ASCII, 0x20..=0x7e. That excludes the newline and the tab, so a StructuredMessage of more than one line cannot be signed in this format, and a body that needs one is refused rather than silently mislabeled. What it buys is the only format a hardware wallet displays, so the person approving reads the message instead of signing a hash they cannot check.

MessageFormat_utf8 → const MessageFormat

UTF-8 (header byte 1). Carries anything a string can hold, including the newline a labeled body is built from. A hardware wallet cannot render it, so approving one is blind-signing.

values → const List<MessageFormat>